RemoteLaunch with Command-line Tools

I'm trying to run a test script from Robot Framework using RemoteLaunch with command-line tools. I'm missing something in the Filename field because i'm getting the following error: "Parsing C:\Windows\system32\${filename}" failed.

Filename: C:\Python27\Scripts\pybot.bat | ${filename} |

What i'd like to do is run pybot.bat with the name of the file i uploaded to attachment (which is widgets.txt).

How can i achieve that? The file wasn't supposed to be downloaded and the name replaced in that ${filename} field?